What is an empty stomach? Do some physical examinations, and often be told that you need to do it on an empty stomach. Many people are actually not sure how long they are on an empty stomach without eating, and they don't understand whether drinking water is on an empty stomach. Let's share what an empty stomach is.
What is the definition of fasting 1? If you don't eat or drink for more than 6-8 hours, the food in your stomach is called fasting after it is completely digested and absorbed. The general clinical requirement for fasting is not to eat or drink after 12, and the next morning is called fasting. Fasting can make the digestive system rest, which is beneficial to the excretion of substances in the body and improve the basal metabolic rate. Followed by blood, blood sugar, liver and kidney function and other tests. Fasting is also needed for the accuracy of the test. However, patients with peptic ulcer and other diseases had better not be on an empty stomach, which will easily stimulate excessive gastric acid secretion.
If you only drink a small amount of water or take medicine with water, it can be counted as fasting, but if you drink a lot of water before taking medicine, it is not counted as fasting. Fasting is defined as not eating or drinking for more than eight hours. Drugs that are generally required to be taken on an empty stomach are due to increased gastric acid secretion after eating. However, gastric acid will have a certain impact on drugs, leading to poor curative effect or complete failure, so if drinking a lot of water leads to an increase in gastric acid, it may also affect the curative effect.
How long is an empty stomach?
1, fasting means fasting in the morning for about 10 to 12 hours, that is, the night before blood drawing, the subjects need to keep their daily habits and maintain a normal diet structure, and at the same time, the dinner is mainly light, and no alcohol, coffee, strong tea, midnight snack, etc. And ensure normal rest time.
2. Some patients even went to the hospital for blood test the next day because they were afraid that eating would affect the relevant test results. This is an incorrect method. If the body is in a state of excessive hunger, various functional indexes of the body will change abnormally, resulting in differences between the collected blood samples and the normal ones, so that the test results can not accurately reflect the real situation of patients, especially diabetic patients, even if they are normal.
Food that cannot be eaten on an empty stomach.
1, tea
Drinking tea on an empty stomach will dilute the gastric juice of the human body, reduce the digestive function of the gastrointestinal tract, and may also cause tea drunkenness, that is, patients have symptoms such as unstable standing, headache, dizziness, palpitation and fatigue.
2.persimmons
Persimmon contains lycopene, pectin, persimmon gum phenol, tannic acid and other substances, which has a strong astringent effect. When people's stomach is on an empty stomach, it meets strong acid, which is easy to combine with gastric acid and condense into insoluble lumps. Smaller lumps can be discharged with feces, while larger lumps are not easy to be discharged, which is easy to cause stomach persimmon stones.
What is an empty stomach? Is it good or bad to drink water on an empty stomach in the morning?
When we get up in the morning, it happens to be a night's rest, but the body will also work to help our metabolism. At this time, we will excrete a lot of water through skin and breathing, and we are in the stage of extreme water shortage. Drinking a glass of water in the morning can reduce blood viscosity, correct high osmotic pressure and water shortage. Therefore, it is very important to drink a glass of water in the morning. It can not only regulate blood, but also help our intestines to function normally.
But don't drink this water.
1, do not drink light salt water.
Everyone knows that eyes have a certain bactericidal and anti-inflammatory effect, so many people choose to drink a cup of light salt water in the morning, which is considered healthy. In fact, this kind of cognition is wrong. After getting up in the morning, drinking a glass of light salt water will aggravate the water shortage in the body, aggravate our water shortage and increase the risk of hypertension.
2. Don't drink honey water.
For female friends, it has the effect of beauty beauty. In addition, it can relieve constipation. But drinking honey water after getting up is not suitable for drinking on an empty stomach, because honey water has a high sugar content, but drinking honey water when the body is short of water will only make us more and more thirsty and risk obesity.
What is a healthy way to drink water on an empty stomach?
1, a glass of water in the morning
"Drink a glass of water on an empty stomach every morning" has become a well-known health proverb. This glass of water can clear the stomach, detoxify and beautify the face and dilute the blood. It is most suitable to drink about 200 ml of warm water, and the water temperature is about 25 to 30 degrees.
Drinking a glass of water after getting up and brushing your teeth can speed up metabolism and help your body quickly discharge accumulated waste.
Step 2 drink water before exercise
Supplementing a glass of water before exercise can prevent the body from overdrawing too much water during exercise. After exercise, if you sweat a lot, you should rest 15 minutes before drinking water, preferably a small amount of water for many times.
3. Drink slowly.
Don't gulp water, which will easily lead to flatulence and accelerate urination. You should sip water slowly. You can't drink too much water at a time. If you drink too much, you can't absorb it.
The amount of drinking water varies from person to person, neither more nor less. Too little will make you feel thirsty, and too much will increase the burden on your kidneys.
Judging from the urine, the urine volume is small and the color is dark, indicating that it is time to drink water, and vice versa.
Step 4 drink warm water
It is best to drink warm water. The water temperature should not be too high or too low, generally between 40-50 degrees. Too high water temperature will damage the oral mucosa, and too low water temperature will stimulate the stomach.
Note that it is warm water, and the water must be cooled slowly after it is completely boiled. Water that never boils contains a lot of harmful substances and can't be drunk.
5. Drink more water when you have a cold.
If you have a cold, fever and other diseases, you should drink more water when you are sick, because if you have a fever, drinking more water will help reduce the fever and relieve the sore throat. Drinking more water can accelerate metabolism and improve immunity.
6. Drink water before going to bed
Generally, it is recommended to add about 1 hour of water (half a cup is enough) half an hour before going to bed, which is beneficial to blood circulation during sleep.
Don't drink water like this
1, don't drink water when you are thirsty.
If you feel thirsty, it means that your body is already in a state of water shortage. Regular hydration can keep the human body hydrated and make the skin moist and elastic.
In fact, there is no best time to drink water. Drink a little if you want, and don't be thirsty.
2. Don't drink water overnight.
Never drink overnight water. Generally, overnight water may be left for more than 16 hours, which will produce many harmful substances, which is very bad for people's health, so it is best not to drink overnight water.
In addition, you can't drink boiled water for a long time, which may produce carcinogens of nitrosamines.
Don't drink unclean water.
No matter how you drink it, it is particularly weak under the premise of cleanliness. Water pollution in water sources and secondary pollution in pipeline transportation lead to drinking water in some areas almost equal to chronic suicide.
Therefore, no matter how you drink water, you should drink clean water. At least, you should boil water before drinking. If you have the ability, you can clean water before drinking water.
What kind of water do you want to drink?
It is not recommended to drink light salt water or honey water after getting up early, because it will aggravate water loss and increase the burden on the body. Boiled water or mineral water is the best hydration choice.
"Water is medicine, but mineral water is the best medicine," Japanese medical professor Kenichiro Fujita wrote in his new book. In Europe, mineral water is known as "a panacea for diseases".
Mineral water is rich in minerals and trace elements necessary for human body, which has a special regulating effect on human body, which is not available in other drinking water.
Moreover, mineral water is clean, and clean water will not bring a burden to the human body, nor will it bring other additional diseases, which can better clean the stomach.